Just remind me , hasnt it been a little while since we stopped building wide body airliners in the west that werent 'computer controlled' ? After all the possible scenario of pitot icing in the AF loss is not a lot different to the taped up static ports on the 757 in terms of automation . Even go back to 737-200 with EPR fault due probe icing causing a crash , if its not recognised at the time then yr in trouble .